mixin css(path,boolean)
  if (boolean)
    - for (var m=0;m<path.length;m++)
      link(rel='stylesheet', href='../../assets/css/'+path[m])
  else
    link(rel='stylesheet', href='../../assets/css/'+path)
mixin js(path,boolean)
  if (boolean)
    - for (var m=0;m<path.length;m++)
      script(src="../../assets/js/"+path[m])
  else
    script(src="../../assets/js/"+path)
  